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Circuit Design Language
CDL: Circuit Description Language is a kind of netlist, a description of an electronic circuit. It is usually automatically generated from a circuit schematic. It is used for electronic circuit simulation and layout versus schematic (LVS) checks. It is similar to SPICE netlists, but with some extensions. Several vendors such as Cadence Design Systems, Mentor Graphics, and Synopsys support CDL netlists, although their solutions may be proprietary and not readable by competing systems. References Electronic circuits {{electronics-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netlist
In electronic design, a netlist is a description of the connectivity of an electronic circuit. In its simplest form, a netlist consists of a list of the electronic components in a circuit and a list of the nodes they are connected to. A network (net) is a collection of two or more interconnected components. The structure, complexity and representation of netlists can vary considerably, but the fundamental purpose of every netlist is to convey connectivity information. Netlists usually provide nothing more than instances, nodes, and perhaps some attributes of the components involved. If they express much more than this, they are usually considered to be a hardware description language such as Verilog or VHDL, or one of several languages specifically designed for input to simulators or hardware compilers (such as SPICE analog simulation netlists). Types of netlists Netlists can be: * Physical (based upon physical connections) or logical (based upon logical connections) ** For ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circuit Schematic
A circuit diagram (wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations. The presentation of the interconnections between circuit components in the schematic diagram does not necessarily correspond to the physical arrangements in the finished device. Unlike a block diagram or layout diagram, a circuit diagram shows the actual electrical connections. A drawing meant to depict the physical arrangement of the wires and the components they connect is called ''artwork'' or ''layout'', ''physical design'', or ''wiring diagram''. Circuit diagrams are used for the design (circuit design), construction (such as PCB layout), and maintenance of electrical and electronic equipment. In computer science, circuit diagrams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Circuit Simulation
Electronic circuit simulation uses mathematical models to replicate the behavior of an actual electronic device or circuit. Simulation software allows for modeling of circuit operation and is an invaluable analysis tool. Due to its highly accurate modeling capability, many colleges and universities use this type of software for the teaching of electronics technician and electronics engineering programs. Electronics simulation software engages its users by integrating them into the learning experience. These kinds of interactions actively engage learners to analyze, synthesize, organize, and evaluate content and result in learners constructing their own knowledge. Simulating a circuit’s behavior before actually building it can greatly improve design efficiency by making faulty designs known as such, and providing insight into the behavior of electronics circuit designs. In particular, for integrated circuits, the tooling (photomasks) is expensive, breadboards are impractica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Layout Versus Schematic
The Layout Versus Schematic (LVS) is the class of electronic design automation (EDA) verification software that determines whether a particular integrated circuit layout corresponds to the original schematic or circuit diagram of the design. Background A successful design rule check (DRC) ensures that the layout conforms to the rules designed/required for faultless fabrication. However, it does not guarantee if it really represents the circuit you desire to fabricate. This is where an LVS check is used. The need for such programs was recognized relatively early in the history of ICs, and programs to perform this comparison were written as early as 1975. These early programs operated mainly on the level of graph isomorphism, checking whether the schematic and layout were indeed identical. With the advent of digital logic, this was too restrictive, since exactly the same function can be implemented in many different (and non-isomorphic) ways. Therefore, LVS has been augmented by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPICE
A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring or coloring food. Spices are distinguished from herbs, which are the leaves, flowers, or stems of plants used for flavoring or as a garnish. Spices are sometimes used in medicine, religious rituals, cosmetics or perfume production. For example, vanilla is commonly used as an ingredient in fragrance manufacturing. A spice may be available in several forms: fresh, whole dried, or pre-ground dried. Generally, spices are dried. Spices may be ground into a powder for convenience. A whole dried spice has the longest shelf life, so it can be purchased and stored in larger amounts, making it cheaper on a per-serving basis. A fresh spice, such as ginger, is usually more flavorful than its dried form, but fresh spices are more expensive and have a much shorter shelf life. Some spices are not always available either fresh or whole, for example turmeric, and often must be purchased in ground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadence Design Systems
Cadence Design Systems, Inc. (stylized as cādence), headquartered in San Jose, California, is an American multinational computational software company, founded in 1988 by the merger of SDA Systems and ECAD, Inc. The company produces software, hardware and silicon structures for designing integrated circuits, systems on chips (SoCs) and printed circuit boards. History Origins Cadence Design Systems began as an electronic design automation (EDA) company, formed by the 1988 merger of Solomon Design Automation (SDA), co-founded in 1983 by Richard Newton, Alberto Sangiovanni-Vincentelli and James Solomon, and ECAD, a public company co-founded by Ping Chao, Glen Antle and Paul Huang in 1982. SDA's CEO Joseph Costello was appointed as CEO of the newly combined company. Executive leadership Following the resignation of Cadence's original CEO Joe Costello in 1997, Jack Harding was appointed CEO. Ray Bingham was named CEO in 1999. In 2004, Mike Fister became Cadence's new CEO. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentor Graphics
Siemens EDA is a US-based electronic design automation (EDA) multinational corporation for electrical engineering and electronics, headquartered in Wilsonville, Oregon. Founded in 1981 as Mentor Graphics, the company was acquired by Siemens in 2017. The company distributes products that assist in electronic design automation, simulation tools for analog mixed-signal design, VPN solutions, and fluid dynamics and heat transfer tools. The company leveraged Apollo Computer workstations to differentiate itself within the computer-aided engineering (CAE) market with its software and hardware. History Siemens EDA was founded as Mentor Graphics in 1981 by Tom Bruggere, Gerry Langeler, and Dave Moffenbeier, all formerly of Tektronix. The company raised $55 million in funding through an initial public offering in 1984. Mentor initially wrote software that ran only in Apollo workstations. When Mentor entered the CAE market the company had two technical differentiators: the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synopsys
Synopsys is an American electronic design automation (EDA) company that focuses on silicon design and verification, silicon intellectual property and software security and quality. Products include tools for logic synthesis and physical design of integrated circuits, simulators for development and debugging environments that assist in the design of the logic for chips and computer systems. In recent years, Synopsys has expanded its products and services to include application security testing. Synopsys has gained attention due to its relationship with various Chinese state entities. In 2018, Synopsys formed a partnership with the People's Liberation Army National Defence University and, in 2022, the company came under investigation by the United States Department of Justice for technology transfers to sanctioned entities in China. History Synopsys was founded by Aart J de Geus and David Gregory in 1986 in Research Triangle Park, North Carolina. The company was initi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
